On Tue, Aug 30, 2016 at 3:51 PM, Rik Theys <Rik.Theys(a)esat.kuleuven.be> wrote:
Hi,
While rebooting one of the hosts in an oVirt cluster, I noticed that
thin_check is run on the thin pool devices of one of the VM's on which
the disk is assigned to.
That seems strange to me. I would expect the host to stay clear of any
VM disks.
We expect the same thing, but unfortunately systemd and lvm try to
auto activate stuff. This may be good idea for desktop system, but
probably bad idea for a server and in particular a hypervisor.
We don't have a solution yet, but you can try these:
1. disable lvmetad service
systemctl stop lvm2-lvmetad.service lvm2-lvmetad.socket
systemctl mask lvm2-lvmetad.service lvm2-lvmetad.socket
Edit /etc/lvm/lvm.conf:
use_lvmetad = 0
2. disable lvm auto activation
Edit /etc/lvm/lvm.conf:
auto_activation_volume_list = []
3. both 1 and 2
Currently we don't touch lvm.conf, and override it using --config option
from the command line when running lvm commands from vdsm. But this
does not help with startup time automatic activation and lvm peeking into
lvs owned by vms. We are probably going to introduce the changes above
in the future.
When I look at the 'lvs' output on the host, it seems to have
activated
the VM's volume group that has the thin pool in it. It has also
activated one other volume group (and it's LV's) that is _not_ a thin
pool. All other VM disks are shown as LV's with their uuid. See output
below.
Is this expected behaviour? I would hope/expect that the host will never
touch any VM disks. Am I supposed to configure an LVM filter myself to
prevent this issue?
We had a thin pool completely break on an VM a while ago and I never
determined the root cause (was a test VM). If the host changed something
on the disk while the VM was running on the other host this might have
been the root cause.
Regards,
Rik
LV VG
Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
05a0fc6e-b43a-47b4-8979-92458dc1c76b
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 10.00g
08d25785-5b52-4795-863c-222b3416ed8d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 3.00g
0a9d0272-afc5-4d2e-87e4-ce32312352ee
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 40.00g
0bc1cdc9-edfc-4192-9017-b6d55c01195d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 17.00g
181e6a61-0d4b-41c9-97a0-ef6b6d2e85e4
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 400.00g
1913b207-d229-4874-9af0-c7e019aea51d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 128.00m
1adf2b74-60c2-4c16-8c92-e7da81642bc6
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 5.00g
1e64f92f-d266-4746-ada6-0f7f20b158a6
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 65.00g
22a0bc66-7c74-486a-9be3-bb8112c6fc9e
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 9.00g
2563b835-58be-4a4e-ac02-96556c5e8c1c
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 9.00g
27edac09-6438-4be4-b930-8834e7eecad5
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 5.00g
2b57d8e1-d304-47a3-aa2f-7f44804f5c66
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 15.00g
2f073f9b-4e46-4d7b-9012-05a26fede87d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 36.00g
310ef6e4-0759-4f1a-916f-6c757e15feb5
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 5.00g
3125ac02-64cb-433b-a1c1-7105a11a1d1c
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 36.00g
315e9ad9-7787-40b6-8b43-d766b08708e2
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 64.00g
32e4e88d-5482-40f6-a906-ad8907d773ce
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 10.00g
32f0948b-324f-4e73-937a-fef25abd9bdc
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 32.00g
334e0961-2dad-4d58-86d9-bfec3a4e83e4
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 11.00g
36c4a274-cbbe-4a03-95e5-8b98ffde0b1b
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 1.17t
36d95661-308f-42e6-a887-ddd4d4ed04e9
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 250.00g
39d88a73-4e59-44a7-b773-5bc446817415
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 4.00g
3aeb1c19-7113-4a4b-9e27-849af904ed41
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 32.00g
43ac529e-4295-4e77-ae06-963104950921
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 33.00g
462f1cc4-e3a7-4fcd-b46c-7f356bfc5589
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 10.00g
479fc9a4-592c-4287-b8fe-db7600360676
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 1.00t
4d05ce38-2d33-4f01-ae33-973ff8eeb897
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 4.00g
4d307170-7d45-4bb9-9885-68aeacee5f33
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 24.00g
4dca97ab-25de-4b69-9094-bf02698abf0e
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 8.00g
54013d0f-fd47-4c91-aa31-f6dd2d4eeaad
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 64.00g
55a2a2aa-88f2-4aca-bbfd-052f6be3079d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 4.00g
57131782-4eda-4fbd-aeaa-af49d12a79e9
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 14.00g
5884b686-6a2e-4166-9727-303097a349fe
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 32.00g
6164a2b2-e84b-4bf9-abab-f7bc19e1099d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 10.00g
62c8a0be-4d7f-4297-af1c-5c9d794f4ba0
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 500.00g
67499042-4c19-425c-9106-b3c382edbec1
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a----- 1.00t
6ba95bb2-04ed-4512-95f4-34e38168f9e9
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 22.00g
6ebf91c2-2051-4e2b-b1c3-57350834f236
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 100.00g
70c834a0-05f4-469f-877c-24101c7abf25
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 6.00g
71401df8-19dd-45d0-be33-f07937fe042d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 6.00g
73d5eb12-88e3-44a2-a791-9b7ad5b77953
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 10.00g
74e0a4ea-d873-4381-85a8-122cd4d2e961
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 260.00g
776901e3-bf78-4cab-aac6-b02588a7b1e1
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 48.00g
86d608ac-1a24-451e-9a29-1b7cbc13c654
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 4.00g
88fbb53f-5019-4cc5-aca6-686731c43f67
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 14.00g
8dc43564-9a9d-4600-a715-0b62c4d0308f
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 5.00g
90167fb2-0941-4cf3-ae56-7cefca7909dd
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 16.00g
99a367c1-ce88-45c7-ac21-aa82c7e9b86e
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 4.00g
9d0fa9df-4b14-46cc-91a4-e66155230b9e
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 10.00g
9d31be10-59c7-4994-9c72-c57608c1b1f0
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 250.00g
9f6dbd0b-78ef-4b84-8467-04e5bd05abfd
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 7.00g
9fb1bdee-0e84-46df-89e2-f05afccd3867
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 70.00g
a0db7a2a-4923-4873-81a0-2f6b7037e643
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 31.00g
a270bad3-cabb-4c14-bf71-347ee148e343
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 50.00g
a9bfdea5-ce26-42d2-af9c-2a6f02df0d2d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 16.00g
b5efe389-6535-412a-a4ed-f3f6147a6dae
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 10.00g
b6c6e718-5c16-4918-b47b-a2c936228a08
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 15.00g
baca4655-c58a-413f-a6c7-b39add9eecb8
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 16.00g
bf378ca0-373a-4a9c-85cd-9983a3004ab7
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 100.00g
c360aaaf-68a4-450d-acac-ff474a579f6c
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 100.00g
c77e9e8c-40a2-4db0-822e-7a089cc77b8a
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 128.00m
cb634231-8bb3-4725-89b7-90c33046bc7c
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 35.25g
cfca3f6e-5c46-4e65-96a5-37cede02a3b5
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 256.00g
d22ff40f-4ce2-4f3a-8c35-07ca72ceb91d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 16.00g
d6ed59ff-6f43-4ebf-b83d-683acd9013c9
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 16.00g
d7357da8-1899-462f-b4a9-d7cf9d6f77c2
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 5.00g
d9dbfb34-0889-42d8-9c31-bad4948f9ca5
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 33.00g
dc057b04-446b-48d4-b559-bb85f38139ca
a797e417-adeb-4611-b4cf-10844132eef4 -wi-ao---- 24.00g
e5d4a078-cd51-4a5d-9f58-29ef253821f9
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 12.00g
eca39fab-60a8-4384-8196-32b55f24107b
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 64.00g
ed23275c-d5e8-4f7c-a795-52bf59c93d4a
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 4.00g
ee5eab01-88cb-4a4b-bcd3-46e26ae47feb
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 64.00g
f0676f9b-c942-4ebc-8614-d79b437d667a
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 18.00g
f778d555-cf2c-4f47-83fe-507ab4b0e96d
a797e417-adeb-4611-b4cf-10844132eef4 -wi------- 15.00g
ids
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a----- 128.00m
inbox
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a----- 128.00m
leases
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a----- 2.00g
master
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a----- 1.00g
metadata
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a----- 512.00m
outbox
a797e417-adeb-4611-b4cf-10844132eef4 -wi-a----- 128.00m
24d78600-22f4-44f7-987b-fbd866736249
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 37.50g
27c6e31e-dad2-4df1-a76d-ee337f1766b1
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 8.00g
28506d83-8d12-43ea-aa71-7f4a93486aa9
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 1.17t
292b02b2-dd4d-43b0-9799-f8f663cff6ef
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 75.00g
3d39299a-1912-4a91-9c4a-dcaaa056627a
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 32.00g
64daff8f-e92a-4823-879f-78bc8314d2e6
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 128.00m
6a3eaf14-21f8-4517-9eef-be274ce07857
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 7.00g
6c1136cb-4525-4cb5-b705-f81265878355
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 19.00g
ab9dfe0d-72a6-4d94-9206-27198f8dc579
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 128.00m
cb59ea43-4418-4da3-86e1-77feaf2637b1
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 3.00g
cc3dca9d-b1a7-4b05-8f53-7d9da0655be5
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 431.00g
d2274e23-dc3f-49e3-b5f4-2b3eada29937
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 4.00g
d57e7183-0f57-42bb-bb14-dd7bf7e320cb
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 6.00g
f7545aa2-e953-4f6c-bd62-1b1fe33bc66e
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 7.00g
fa1d8c9c-9874-4fad-b059-a0c60053dcfb
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi------- 16.00g
ids
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a----- 128.00m
inbox
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a----- 128.00m
leases
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a----- 2.00g
master
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a----- 1.00g
metadata
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a----- 512.00m
outbox
a7ba2db3-517c-408a-8b27-ea45989d6416 -wi-a----- 128.00m
imap maildata
Vwi---tz-- 750.00g pool0
ldap maildata
Vwi---tz-- 3.00g pool0
log maildata
Vwi---tz-- 10.00g pool0
mailconfig maildata
Vwi---tz-- 2.00g pool0
pool0 maildata
twi---tz-- 1020.00g
postfix maildata
Vwi---tz-- 10.00g pool0
root vg_amazone
-wi-ao---- 32.00g
swap vg_amazone
-wi-ao---- 64.00g
phplogs vg_logs
-wi-a----- 12.00g
wwwlogs vg_logs
-wi-a----- 12.00g
--
Rik Theys
System Engineer
KU Leuven - Dept. Elektrotechniek (ESAT)
Kasteelpark Arenberg 10 bus 2440 - B-3001 Leuven-Heverlee
+32(0)16/32.11.07
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